Steve's Hickok Collection Hickok Electrical Instrument Co., Cleveland Ohio

Hickok OS7 Audio and Radio Signal Generator This 1935 Hickok Signal Generator is AC powered. There is no model number on the faceplate or the case. It has Model 46 printed on the face of the meter. It generates audio and RF signals in 7 ranges from kilocycles through the broadcast band and megacycles. Tuning dial has a bakelite case with the HICKOK name molded into it. I'd place it in the early 1930's. It looks to be the same series as the next two meters below. Larger Photo Tuning Dial OS7 Schematic (Adobe PDF File)

Early Hickok Volt/Ohm/Capacity Meter - Model 47? This early Hickok meter is AC powered. There is no model number on the faceplate or the case. It has Model 47 printed on the face of one meter. It measurers resistance, capacitance, and voltage. It uses an original Sylvania SX-171-A Power Amplifier 4 pin vacuum tube. From the construction I'd place it in the late 1920's. Meter Face Meter in case Hickok Nameplate

Early Hickok Volt/Ohm Meter - Model 48? This is one of the earliest Hickok meters I have seen. It is marked Model 48 on the face of the meter. It measurers resistance (Ohms) and DC voltage. From the construction I'd place it in the late 1920's. It uses the same style of parts as the SG-4600 Tube Tester below and the Hickok Model 47 meter above. Larger Photo

Early Hickok Tube Tester - SG-4600 ? This early 5 meter Hickok tube tester is battery powered and requires both A and B batteries to perform tube testing. There is no model number on the faceplate or the case. It is similar to the reportedly first commercial Hickok tube tester, the five meter SG-4600 manufactured in the 1920s but this tester only has two tube sockets and a different faceplate layout. The SG-4600 testers I have seen have three tube sockets. I have seen several variations of these Hickok testers. This two socket tester might be the first of that series. Larger Photo Nameplate Photo

Hickok SG-4800 Radio Set Tester This set tester was manufactured around 1929 (guess) and uses several adapters to connect to a radio's tube socket. It measures AC and DC volts, resistance, capacitance, and DC milliamps. The tester tester is battery and AC powered and requires 5 batteries to perform various tests. It has a battery chart glued to the inside bottom of the case. Larger Photo Faceplate and adapters Battery Chart

Hickok Tube Tester - AC-47-A This is the later model of the Hickok AC-47 tube tester series that sold in the early 1930s. It is AC powered and requires an external #80 rectifier tube to perform tube testing. It was produced around 1936. This version has three sockets for testing tubes. The left socket on this AC-47-A will accept several different pin tube bases that the earlier AC-47 models did not have. They required external adapters for testing later tubes. Larger Photo

Hickok 4900-S Set Tester This 1937 portable 4900-S Set Tester measures capacitance, resistance, AC and DC milliamps, and AC and DC volts up to 2,500 volts. Larger Photo Inside Photo 4900S schematic (Adobe PDF File)

Hickok Signal Generator Model 10 Hickok Model 10 signal generator, 100 KC - 20 MC output. Right meter is frequency selector and left meter is output in Decibels. Larger Photo

Hickok Vacuum Tube Voltmeter Model 110-B This Hickok Model 110B Vacuum Tube Voltmeter has a round high voltage probe that clips on the top of the case for storage. Larger Photo Probe

Hickok 51X Tube Tester This Hickok Model 51X Mutual Conductance Tube Tester is the companion to the Model 10 Signal Generator above. The 51X tests tubes, capacitors. It also measurers AC and DC voltages, and resistance. Larger Photo Larger Photo - Face 51X Tube Data Sheet (Adobe PDF File)

Hickok Model 305 Oscillograph (Oscilloscope) This Hickok Model 305 scope has a 3" display with a pull out light shade around the display tube to reduce glare. It takes up quite a bit of bench space. Larger Photo

Hickok Military I-129-B Absorption Frequency Meter Set The four hand held Absorption Frequency Meters were manufactured by the James Millen Manufacturing Co. in Malden Mass. The set with case was supplied by Hickok. The four meters cover 1.5-3.5 MC, 3.5-8 MC, 8-18 MC, 18-40 MC. Photos: Nameplate Wood Case Meters in case Meters in case 2 Absorption Frequency Meter James Millen instruction sheet (PDF file)

Hickok 6000A Tube Tester Not an early model but this 6000A is my daily driver. It was manufactured in the 1960s. I use this tube tester on my workbench for testing newer vacuum tubes. Larger Photo 6000A Manual and tube data sheets here.

Free Hickok Downloads - Adobe PDF Files: Hickok Catalog #10 (shown at left) This condensed catalog covers Hickok test equipment produced in 1939. Pricing on rear cover. Hickok Catalog #120 (shown at middle left) This catalog has no date but covers models produced between 1939 and 1946. Hickok Catalog #30 (shown at lower left) This full line catalog has no date but covers models produced in the mid 1950s. Hickok Catalog #25 Panel Meters (partial catalog) 1955 Hickok Price List Additional Hickok Documentation: Hickok Manuals, and Schematics

I am looking for older Hickok catalogs, manuals, and schematics to post
here as free downloads. Please contact me if you have any available.

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Please Note: The data and files contained here are vintage sources. There is no guarantee of the accuracy of any information contained on these pages. It is solely up to the end user to decide that the information and files contained here are accurate and fit for use with their equipment. I am not responsible for any loss or damages that may be incurred in any way from the use of any information contained on or downloaded from this web site.

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